<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avater_box">
        <img src="../assets/logo.png" alt="" />
      </div>
      <!-- 表单区域 -->
      <el-form
        label-width="0px"
        class="login_form"
        :model="loginForm"
        :rules="loginFormRules"
        ref="loginRef"
      >
        <!-- 用户名 -->
        <el-form-item prop="userName">
          <el-input
            prefix-icon="iconfont icon-denglu"
            v-model="loginForm.username"
          ></el-input>
        </el-form-item>

        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input
            prefix-icon="iconfont icon-mima"
            v-model="loginForm.password"
            :show-password="true"
          ></el-input>
        </el-form-item>

        <!-- 按钮 -->
        <el-form-item class="btns">
          <el-button type="primary" @click="loginFun">登录</el-button>
          <el-button type="info" plain @click="restFun">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      loginForm: {
        username: "admin",
        password: "123456",
      },
      loginFormRules: {
        username: [
          { required: true, message: "请输入用户名", trigger: "blur" },
          { min: 3, max: 5, message: "长度在 3 到 5 个字符", trigger: "blur" },
        ],
        password: [
          { required: true, message: "请输入密码", trigger: "blur" },
          {
            min: 3,
            max: 10,
            message: "长度在 3 到 10 个字符",
            trigger: "blur",
          },
        ],
      },
    };
  },

  methods: {
    // 表单重置功能
    restFun() {
      this.$refs.loginRef.resetFields();
    },
    // 提交功能
    loginFun() {
      this.$refs.loginRef.validate(async (valid) => {
        if (!valid) return;
        const { data: res } = await this.$http.post("login", this.loginForm);
        if (res.meta.status !== 200)
          return this.$message({
            message: "登录失败,请重新输入密码",
            type: "error",
          });
        window.sessionStorage.setItem("token", res.data.token);
        this.$message({ message: "登录成功", type: "success" });
        this.$router.push("/home");
      });
    },
  },
};
</script>

<style lang="scss" scoped>
.login_container {
  height: 100%;
}

.login_box {
  width: 450px;
  height: 300px;
  border-radius: 3px;
  background-color: #fff;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.avater_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  padding: 10px;
  border-radius: 50%;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;

  img {
    height: 100%;
    width: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}

.login_form {
  position: absolute;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
  bottom: 0;
}

.btns {
  display: flex;
  justify-content: flex-end;
}
</style>
